Gnuplot：xtics - 将字符串放在抽搐

Question

我是gnuplot的新手，我正在尝试为项目创建堆叠直方图。我遇到的问题是，我无法在x轴上放置标签（即使我可以，它们也没有以简洁的方式进行格式化）。我的gp文件如下：

以下是我的数据文件的快照：

CC P1-X P1-Y P2-X P2-Y
1 0.1097586  0.3262812  1.980848  5.9098402
2 0.1010986  0.2988812  0.9966702  5.8378412
3 0.4017474  0.7559452  4.41813  11.7404132
4 0.1028442  0.2974772  1.418744  6.0554552
5 0.1097316  0.3216112  1.967492  5.8007364
6 0.954794  0.3004874  0.9568386  5.778537

这是我的gp文件：

set title "GCC compilation option by average execution time as stacked histogram"
set terminal jpeg medium
set output "histosmalldata.jpeg"
set boxwidth 0.9 absolute
set style fill solid 1.00 border -1
set key autotitle columnheader
set key outside right top vertical Left reverse enhanced autotitles columnhead nobox
set key invert samplen 4 spacing 1 width 0 height 0 
set style histogram rowstacked title  offset character 0, 0, 0
set style data histograms
set xtics border in scale 1,0.5 nomirror rotate by -45  offset character 0, 0, 0
set xtics norangelimit
set xtics ("O2-ffast-math-finline-functions" 1, "O2-funroll-loops-march=barcelona-ffast-math-finline-functions" 2, "GCCFLAGS_O0" 3, "O2-ftree-vectorize-funroll-loops-march=barcelona" 4, "GCCFLAGS_O2" 5, "O2-ftree-vectorize-funroll-loops-ffast-math" 6)
set xtics 1,6 nomirror 
set ytics 0,100 nomirror
set ytics 1
set yrange [0:20]
set ylabel "Time"
set xlabel "GCC Compiler Options"
plot 'smalldata' using 2:xtic(1) ti col, '' using 3 ti col, '' using 4 ti col, '' using 5 ti col

这是图表的图像：

现在，在x轴上，我有1,2,3 - 6这是我不想要的，而是，我希望“O2-ffast-math-finline-functions”为1，依此类推整洁的格式化方式。

我在查阅了gnuplot页面中的一些例子之后写了这个脚本，并且对一些动词没有很好的理解，所以除了解决方案之外，欢迎任何一般性的评论。

谢谢你，
萨扬

Answer 1

在指定所需内容后，不应覆盖xtics设置。

将所有选项放入单个set命令中：

set xtics border in scale 1,0.5 nomirror rotate by -45  offset character 0, 0, 0\
         norangelimit\
         ("O2-ffast-math-finline-functions" 1,\
          "O2-funroll-loops-march=barcelona-ffast-math-finline-functions" 2,\
          "GCCFLAGS_O0" 3, "O2-ftree-vectorize-funroll-loops-march=barcelona" 4,\
          "GCCFLAGS_O2" 5, "O2-ftree-vectorize-funroll-loops-ffast-math" 6)

请注意，您可以使用反斜杠作为行的最后一个字符来转义换行符。

Answer 2

我发现，我实际上并不需要指定ticlabels，因为该信息在我的源文件中。 所以我修改了我的源文件，如：

set title "GCC compilation option by average execution time as stacked histogram"
set terminal png size 1500,1200 font "/Library/Fonts/Times New Roman Bold.ttf, 13"
set output 'hist_gcc_1.png'
set boxwidth 0.9 absolute
set style fill solid 1.00 border -1
set key outside right top vertical Left reverse enhanced autotitles columnhead nobox
set key invert samplen 4 spacing 1 width 0 height 0 
set style histogram rowstacked title offset character 0, 0, 0
set datafile missing '-' 
set style data histograms
set xtics border in scale 1,0.5 nomirror rotate by -45 offset character 0, 0, 0     norangelimit
set ytics 0,100 nomirror
set ytics 1
set yrange [0:20]
set ylabel "Time"
set xlabel "GCC Compiler Options"
plot 'data' using 2:xticlabels(1) ti col, '' using 3 ti col, '' using 4 ti col, '' using 5 ti col

我的dat文件如下：

CC P1-X P1-Y P2-X P2-Y
O2-ffast-math-finline-functions 0.1097586  0.3262812  1.980848 5.9098402
O2-funroll-loops-march=barcelona-ffast-math-finline-functions 0.1010986 0.2988812  0.9966702 5.8378412
GCCFLAGS_O0 0.4017474 0.7559452 4.41813 11.7404132
...